Buy Octagon Shape 20x15 mm Gems

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Octagon Shape 20x15 mm Gems
Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated Octagon shape / Emerald-Cut, faceted and cabochon gems available now in 20 x 15 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

Certified Customer Reviews

Overall Rating -> 10

Love the gem.... ease of finding the right gem. For me it was the size of the gem that was important on this purchase. I found the right size.

Posted By Makola in September, 2019

Source: Bizrate

Overall Rating -> 10

I was really looking for a gem quality jadeite, exactly 7mm round. No such luck anywhere, so I bought several other 7mm stones just to look. Was fun rummaging through all the goodies.

Posted By PatPat in September, 2019

Source: Bizrate

Overall Rating -> 10

Great selection. I have ordered many times over the years and had good services and great stones.

Posted By Kel in September, 2019

Source: Bizrate

Overall Rating -> 9

Great selection of items easey to place order definitely will order from you again Just wish that there was a place on the sight to convert MM to inches or be able to pick between mm and inches to determine the size of stone's for those of us that do not use the metric system

Posted By Nickel in September, 2019

Source: Bizrate

Overall Rating -> 10

Bro, I found this dope ass site with thee most beautiful gems and the picture quality is awesome. When I tell you that you can choose so simply then you better believe it!

Posted By Jeff in September, 2019

Source: Bizrate

Overall Rating -> 10

This web site is super easy to use and the product has always been top notch. I have ordered stones from around the globe and I love their selection. My wife's wedding gifts and greats birthday gifts always start with gem select.

Posted By Jake the Jeweler in September, 2019

Source: Bizrate

Gemstone Information

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Buy Octagon Shape 20x15 mm Gems

Octagon / Emerald Cut Golden Citrine

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Violet Amethyst

Octagon / Emerald Cut Golden Citrine

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Yellow Quartz

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Gray Hematite

Octagon / Emerald Cut Golden Citrine